THE UNITED STATES.
Chicago is one of the greatest railroad centers of the world, and the manufacture of rails has been the natural direction of develop-
a, Intermediate crane; b, Casting crane; e, Converter; d, e, Elevated track from receiver;
/, Ladle crane; g, Operating stand for casting crane; h, To stripper; i, Slag track; Jfc, Casting track; I, Casting platform; m, Operating casting crane; n, Operating converter
FIG. XXII-H.—BESSEMER PLANT AT SOUTH CHICAGO, ILL.
nient, one of the greatest of American rail mills being in operation here. By virtue of the tributary railroad systems the Chicago market has always had a'surplus of scrap for disposal, and this fact influenced the development of an extensive open-hearth plant, which